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US 40 Ml WB over Fortification Creek

Moffat County, Colorado · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

US 40 Ml WB over Fortification Creek in Moffat County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1952, making it 73 years old at the 2025 inventory.
It carries about 3,000 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 54 of the 80 inventoried bridges in Moffat County rated fair (67.5%); 5 (6.2%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 108 ft
Location	In Craig
NBI structure number	B-06-A
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.

Bridge	Built	Vehicles/day	Condition
US 40 Ml over Elkhead River	1992	4,200	Good
SH 394 Ml over Yampa River	1985	3,100	Good
SH 13 Ml over Yampa River	1972	2,800	Fair
SH 13 Ml over Pine Ridge Gulch	1973	2,800	Fair
SH 13 Ml over RR Spur	1978	2,800	Fair
US 40 Ml Ebnd over Fortification Creek	1977	2,500	Good